How to send zc24 with an old man-machine

The method of sending zc by the old man-machine is as follows: First, press the # key to switch the input method to English, and the letter "wxyz" can be seen on the number "9 key". Press the "9 key" four times in a row and enter "Z"; Because the number "2 key" has the letter "abc", press "2 key" three times in a row to enter "C"; Press the # key to switch the input method to numbers.